On Dec 27, 2011, at 5:51 AM, Roland King wrote:
> // tell each of the controllers we're adding that they are being added
> and prepare the ones being removed for removal
> for( UIViewController *controller in appearingControllers )
> [ self addChildViewController:controller ];
> [ disappearingControllers makeObjectsPerformSelector:@selector(
> willMoveToParentViewController: ) withObject:nil ];
>
> [ appearingControllers makeObjectsPerformSelector:@selector(
> didMoveToParentViewController: ) withObject:self ];
> [ disappearingControllers makeObjectsPerformSelector:@selector(
> removeFromParentViewController ) ];
>
> // get the views in order
> NSArray *newViews = [ viewControllers valueForKey:@"view" ];
>
> // views then added to our view
That looks about like what we're doing successfully. The only difference I see
is that we're adding/removing views between the paired view controller calls.
In the example below, both self and slice are UIViewController subclasses.
// removing
[slice willMoveToParentViewController:nil];
if ([slice isViewLoaded] && slice.view.superview == view)
[slice.view removeFromSuperview];
[slice removeFromParentViewController];
...
// adding
[self addChildViewController:slice];
[view addSubview:slice.view];
[slice didMoveToParentViewController:self];
HTH.
Cheers,
Curt
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